Respiratory System

Challenge ?• People from sea-level

usually experience increased respiration when they go to high elevations.

Explain why?

Connection (Remember all answers need units)

• The average person breathes about 12 times/min. How many breaths does the person take in a day? (Show your work)

• The average person breathes 8640 liters of air per day. (Show your work)– How many liters is that every hour?

– How many liters every minute?

Vocabulary

• Respiration• Breathing• See Objective Notes #1

Resources

• Holt Life Science pages 556-559• Respiratory System Guided Notes• Work It Out – Lab

OBJECTIVES (pg. 556)

NOTES

Identify and describe the parts and functions of the respiratory system

• Nose

• Pharynx

• Larynx

• Trachea

• Bronchi

• Lungs

• Alveoli

• Diaphragm

Describe the flow of air through the respiratory system

• See # 5-10 of Guided Notes

Describe the relationship between the respiratory system and cardiovascular system

•

OBJECTIVES (pg. 556) NOTES

Identify and describe the parts and functions of the respiratory system

• Nose – Primary passageway in/out of respiratory system; warms, moistens and cleans air

• Pharynx – Throat – 2 branches, one to lungs other to digestive system

• Larynx- voice box, produces sound• Trachea- windpipe , passageway from throat to lungs• Bronchi – trachea splits in two, passageway to each lung• Lungs- sack like organ – air exchange• Alveoli – tiny sack like organ this is where the actual gas

exchange takes place• Diaphragm – thick wall of muscle below lung, contracting and

relaxing this muscle forces air in and out of lungs

Describe the flow of air through the respiratory system

See # 5-10 of Guided Notes

Describe the relationship between the respiratory system and cardiovascular system

• The circulatory system is the transport system that carries materials that are imported and exported by the respiratory system(lungs, nose, mouth)to and from the cells.